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发明名称
VORRICHTUNG ZUM LOESEN UND FOERDERN VON FLOEZARTIG ANSTEHENDEN MINERALISCHEN ROHSTOFFEN
摘要
申请公布号
DE4004488(A1)
申请公布日期
1991.08.29
申请号
DE19904004488
申请日期
1990.02.14
申请人
BOCHUMER EISENHUETTE HEINTZMANN GMBH & CO KG, 4630 BOCHUM, DE
发明人
PLAGA, KURT, ING.(GRAD.), 4690 HERNE, DE
分类号
E21C27/32
主分类号
E21C27/32
代理机构
代理人
主权项
地址
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